all my Pipeline projects are named like

<Project_Name>_PIPELINE

I have only one node with several executors, but I do not want two Pipelines running at the same time, so I use Build-Blocker-Plugin, with

.*_PIPELINE

as regular expression.

Problem : If I launch PROJECT_A_PIPELINE and just after PROJECT_B_PIPELINE, they both run on two executors, at the same time. I am expected PROJECT_B_PIPELINE to wait for PROJECT_A_PIPELINE to be over.

I think this may be similar to JENKINS-50187 but not sure as there is a node label based behavior, so it could be more specific

(note : I do need several executor as the node also runs regular Freestyle Project)